1. Function Overview
The ETERNUS DX provides various functions to ensure data integrity, enhance security, reduce cost,
and optimize the overall performance of the system.
The ETERNUS DX integrates block data (SAN area) and file data (NAS area) in a single device and
also provides advanced functions according to each connection.
These functions enable to respond to problems from various situations.
The ETERNUS DX has functions such as the SAN function (supports block data access), the NAS
function (supports file data access), and basic functions that can be used without needing to rec-
ognize the SAN or the NAS connection.
For more details about the basic functions, refer to "2. Basic Functions" (page 16). For more details
about the functions that are used for a SAN connection, refer to "3. SAN Functions" (page 110).
Table 1 Basic Functions
Overview Function
Data protection
Functions that ensure data integrity to improve data reli-
ability.
It is possible to detect and fix drive failures early.
"Data Block Guard" (page 31)
"Disk Drive Patrol
" (page 32)
"Redundant Copy" (page 33)
"Rebuild" (page 34)
"Fast Recovery" (page 35)
"Copyback/Copybackless" (page 36)
"Protection (Shield)" (page 38)
"Reverse Cabling" (page 40)
Resource utilization (virtualization/Automated Storage
Tiering)
Functions that deliver effective resource utilization.
"Thin Provisioning" (page 41)
"Flexible Tier
" (page 48)
"Extreme Cache Pool" (page 54)
•
Data capacity expansion
Functions that expand or relocate a RAID group or a
volume in order to flexibly meet any increases in the
amount of data.
•
Guarantee of performance
A function that creates a volume that is striped in mul-
tiple RAID groups in order to improve performance.
"RAID Migration" (page 57)
"Logical Device Expansion
" (page 59)
"LUN Concatenation" (page 61)
"Wide Striping" (page 63)
Security measures (data encryption)
Functions that encrypt data in the drive media to pre-
vent the data from being fraudulently decoded.
"Encryption with Self Encrypting Drive (SED)" (page 65)
"Firmware Data Encryption
" (page 66)
"Key Management Server Linkage" (page 67)
Security measures (user access management)
Functions to prevent information leakage that are
caused by a malicious access.
"Account Management" (page 70)
"User Authentication
" (page 72)
"Audit Log" (page 74)
Environmental burden reduction
Functions that adjust the operating time and the envi-
ronment of the installation location in order to reduce
power consumption.
"Eco-mode" (page 75)
"Power Consumption Visualization" (page 78)
Operation management (device monitoring)
Function that reduce load on the system administrator,
and that improve system stability and increase operat-
ing ratio of the system.
"Operation Management Interface" (page 79)
"Performance Information Management" (page
80)
"Event Notification" (page 82)
"Device Time Synchronization" (page 85)
Power control
Power control functions that are used to link power-on
and power-off operations with servers and perform
scheduled operations.
"Power Synchronized Unit" (page 86)
"Remote Power Operation (Wake On LAN)
" (page 87)
14
Fujitsu Storage ETERNUS DX100 S4/DX200 S4, ETERNUS DX100 S3/DX200 S3 Hybrid Storage Systems
Design Guide (Basic)
Copyright 2023 Fujitsu Limited
P3AM-7642-32ENZ0
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